JP2882066B2 - Corner piece for car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner piece for an automobile, which is attached to an inclined portion between an inclined sash of a rear door of an automobile or a rear inclined pillar and a door belt line.

[0002]

2. Description of the Related Art Conventionally, for example, there has been known a corner piece for an automobile which is mounted on an inclined portion of an inclined sash or an inclined pillar of a front door of an automobile and a door belt line (for example, Japanese Utility Model Laid-Open No. 2-60016). Gazette).

The corner piece of the front door is formed by coating a substantially triangular sheet metal insert with a polymer elastic material, forming a glass run vertically on one side of the upper part, and fixing legs to the lower sheet metal insert. A part is provided.

[0004] This kind of corner piece is formed by lightening the cover of the main body in order to reduce the weight. Is covered by fitting an inner cover.

On the other hand, there is a case where a corner piece having the same covering portion as described above is mounted on an inclined portion of an inclined sash of a rear door of an automobile or an inclined pillar of a rear and a door belt line.

[0006] In this rear corner piece, it is necessary to remove the thickness of the thick main body portion in order to reduce the weight. However, this corner piece has a design surface on both the inside surface and the outside surface. In order to adopt a structure in which no covers are attached, it has been considered to insert a middle die from the bottom of the corner piece to remove the thickness.

[0007]

However, when such a corner piece is molded, if a set pin for supporting the insert is applied to the surface of the product in the mold, a mark of the set pin is formed on the design surface. There was a problem that the center of the insert could not be supported by the set pin, and it was difficult to hold the insert in a fixed position against the injection pressure of the material applied to the insert during molding.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to maintain a good design surface of a product and to form a good product by holding an insert in a fixed position without deforming the product. The purpose is to provide a piece.

[0009]

SUMMARY OF THE INVENTION To this end, a corner piece for an automobile according to the present invention has a shape which closes an inclined sash of a rear door or a narrow angle portion between a rear inclined pillar and a door belt line, and is formed of a sheet metal. In a corner piece for an automobile, in which a coating portion in which an insert is coated with a polymer elastic material is provided, a main body portion of a sheet metal insert is formed by a single plate, and a plurality of ridges are formed in a grid shape on the main body portion. Protruding from
At least one material through hole is provided in a portion of the main body portion surrounded by the ridge, a lightening space communicating with the bottom portion is formed in the covering portion, and a part of the ridge of the sheet metal insert is exposed in the lightening space. It is configured to

[0010]

In order to form a corner piece, a sheet metal insert is placed in a molding die having a cavity of a predetermined shape. Insert and set inside the insert. At this time, the sheet metal insert is set so that the projecting ridge surface comes into contact with the core.

At the time of molding, a high-pressure material is injected into the cavity, and the material pressure is applied to each part of the sheet metal insert. However, material through holes provided in each part of the insert allow the material to pass through and release the material pressure appropriately. In addition, sheet metal inserts with ridges provided vertically and horizontally on the plane part have high strength against twisting and bending, and since the core supports the inserts from the inside of the product through the ridges, the sheet metal insert has a twist. Good deformation is achieved without deformation such as bending.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view (inside of a vehicle) of a corner piece mounted on an inclined sash of a rear door of an automobile and a narrow portion of a door belt line. In this corner piece, a polymer elastic material such as PVC, PVC / NBR polyblend, or EPDM is transferred to the sheet metal insert 1.
The cover portion 2 is formed by coating by injection molding or the like, and is formed in a substantially triangular shape so as to cover the narrow portion of the window portion of the rear door.
On one side of the corner piece, there is formed a glass run storage portion 3 for receiving a glass run (FIG. 2), and a glass guide portion 4 having an extended insert protrudes downward at the bottom.

As shown in FIGS. 4 to 6, the sheet metal insert 1 is provided on one side of one metal plate formed in a substantially triangular shape.
It is configured by providing a glass run storage section insert 1a having a U-shaped cross section. In the main body of the sheet metal insert 1, that is, in a portion formed by a single plate, a ridge 1b is provided vertically and horizontally, that is, in a lattice shape. The ridge 1b is formed so as to be extruded toward the inside of the sheet metal insert 1 by press working or the like.

Further, in the sheet metal insert 1, a large number of material through holes 1c are formed on the entire surface of the sheet metal insert 1 in order to improve the flow of the material during molding. These material through holes 1c
At least one is formed in a portion surrounded by the ridge 1b.

When molding a corner piece, the sheet metal insert 1 is placed in a molding die having a cavity having a predetermined shape, and the plate-shaped core is inserted from the lower side, that is, from the bottom side of the triangle, to reduce the thickness. Insert and set inside. At this time, the surface of the ridge 1b of the sheet metal insert 1 comes into contact with the core, the set pin is pressed against the periphery of the insert except for the design surface of the product, and the sheet metal insert 1 is set at a fixed position in the mold.

As described above, in a state where the sheet metal insert 1 is set in the mold, the high-molecular elastic material is injected into the cavity to perform molding.

At the time of molding, a high-pressure material is injected into the cavity, and the material pressure is applied to each part of the sheet metal insert 1. The material through holes 1c provided in each part of the insert allow the material to pass and release the material pressure appropriately. . In addition, since the sheet metal insert 1 provided with the ridges 1b in the plane portion in the vertical and horizontal directions has a large strength against torsion and bending, and because the core supports the insert from the inside of the product via the ridges 1b, No deformation such as twisting or bending occurs in 1 and molding is performed favorably.

As shown in FIG. 1, the formed corner piece has a shape having good design surfaces on the inside and outside surfaces of the vehicle, and, as shown in FIG. The lightening space 5 is formed, and a part of the ridge 1b is exposed in the lightening space 5.

The corner piece thus formed is placed in a state where the glass run is mounted in the glass run storage section 3.
It is installed at a position that closes the angle between the inclined sash of the rear door or the inclined pillar of the rear of the automobile and the door belt line.

[0021]

As described above, according to the corner piece for an automobile of the present invention, the main body of the sheet metal insert of the corner piece is formed of a single plate, and the main body has a plurality of ridges formed in a grid. At least one material through hole is provided in a portion of the main body portion surrounded by the ridge, and a lightening space communicating with the bottom portion is formed in the covering portion,
Because part of the ridge of the sheet metal insert is exposed in the lightening space, when molding a corner piece, the plate-shaped core is cut to the bottom side of the corner piece to lighten the coating. Can be inserted into the inside of the sheet metal insert and set so that the ridge surface of the sheet metal insert comes into contact with the core.

For this reason, at the time of molding, the core of the sheet metal insert can be supported by the core, and the sheet metal insert in which the ridges are provided vertically and horizontally on the plane portion has high strength against twisting and bending. The corner piece can be favorably formed without deformation such as twisting or bending.

[Brief description of the drawings]

FIG. 1 is a front view of the inside of a corner piece for a vehicle.

FIG. 2 is a left side view thereof.

FIG. 3 is a sectional view taken along the line III-III of FIG. 1;

FIG. 4 is a front view of the sheet metal insert.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 4;

[Explanation of symbols]

 1-sheet metal insert, 2-cover, 1b-protrusion, 1c-material through hole.

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60J 5/04

Claims (1)

(57) [Claims] 1. An automobile having a shape that closes an angled portion between an inclined sash of a rear door or an inclined pillar of a rear and a door belt line, and in which a sheet metal insert is provided with a coating portion coated with a polymer elastic material. In the corner piece for use, the main body of the sheet metal insert is formed of a single plate, and a plurality of ridges are provided on the main body in a lattice shape and project inwardly. Is provided with at least one material through-hole, a lightening space communicating with a bottom portion is formed in the covering portion, and a part of a ridge of the sheet metal insert is exposed in the lightening space. Corner piece.